First, calculate the molar mass of the empirical formula NBH4. The atomic masses of nitrogen (N), boron (B), and hydrogen (H) are approximately 14.01 amu, 10.81 amu, and 1.01 amu respectively. So, the molar mass of NBH4 is 14.01 amu + 10.81 amu + (4 * 1.01 amu) =
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